BUILT-IN VIBRATION ISOLATION MOUNT (Stainless Steel Fittings)

E-9942

Material: Fittings：Stainless steel
Vibration isolation material：Ether-based polyurethane

Feature: ■Built-in vibration isolation mount with polyurethane material which has high isolation performance.
■Vibration isolation from lower frequency.
Uses polyurethane foam material that can reduce vibrations even low frequency vibrations.
■High weather resistance
Uses ether-based polyurethane that is resistant to water and ultraviolet light without quality deterioration unlike rubbers.
■Support for wide loading range
Wide available loading from 11N to 580 N
■Various vibration isolation material
Can select 4 types of isolation material every fitting size. No need to change fitting size, even if loading is different.

Specifi cations

Order No.	№	ViBration isolation material color	D	d	Load tolerance		Natural frequency (Hz)	Applicable vibration frequencies (Hz)	Vibration material defl ection (mm)	Drawing	Product BOX	CAD	Production	Stock Status
Order No.	№	ViBration isolation material color	D	d	N	kgf	Natural frequency (Hz)	Applicable vibration frequencies (Hz)	Vibration material defl ection (mm)	Drawing	Product BOX	CAD	Production	Stock Status
127540	BBC20D007	Pink	25	M5	11 to 16	1.2 to 1.7	14	≥28	2	View	Add	DATA	Stock Item	Stock〇
127541	BBC20D013	Yellow	25	M5	23 to 31	2.4 to 3.2	15	≥29	2	View	Add	DATA	Stock Item	Stock〇
127542	BBC20D030	Green	25	M5	52 to 70	5.4 to 7.2	14	≥27	2	View	Add	DATA	Stock Item	Stock△
127543	BBC20M097	Purple	25	M5	130 to 180	14 to 18	13	≥26	2	View	Add	DATA	Stock Item	Stock〇
127544	BBC25D007	Pink	31	M6	19 to 26	2 to 2.7	13	≥25	2	View	Add	DATA	Stock Item	Stock〇
127545	BBC25D013	Yellow	31	M6	37 to 50	3.8 to 5.1	13	≥26	2	View	Add	DATA	Stock Item	Contact
127546	BBC25D030	Green	31	M6	80 to 100	8.2 to 11	12	≥25	2	View	Add	DATA	Stock Item	Contact
127547	BBC25M097	Purple	31	M6	210 to 290	22 to 30	12	≥24	3	View	Add	DATA	Stock Item	Stock△
127548	BBC30D007	Pink	36	M6	28 to 38	2.9 to 3.9	11	≥23	2	View	Add	DATA	Stock Item	Stock〇
127549	BBC30D013	Yellow	36	M6	53 to 72	5.5 to 7.4	12	≥23	3	View	Add	DATA	Stock Item	Stock〇
127550	BBC30D030	Green	36	M6	110 to 150	12 to 16	11	≥22	3	View	Add	DATA	Stock Item	Stock〇
127551	BBC30M097	Purple	36	M6	320 to 430	33 to 44	10	≥21	3	View	Add	DATA	Stock Item	Stock〇
127552	BBC35D007	Pink	41	M8	39 to 52	4 to 5.4	11	≥21	3	View	Add	DATA	Stock Item	Stock〇
127553	BBC35D013	Yellow	41	M8	73 to 98	7.5 to 10	11	≥22	3	View	Add	DATA	Stock Item	Stock〇
127554	BBC35D030	Green	41	M8	150 to 210	16 to 22	10	≥21	3	View	Add	DATA	Stock Item	Stock〇
127555	BBC35M097	Purple	41	M8	440 to 580	45 to 60	10	≥20	4	View	Add	DATA	Stock Item	Stock〇

Other info

Application examples

Aim：Counteract the vibrations from a compressor
Method：Install 4 of the BBC35D013 built-in vibration isolation mounts with stopper between the compressor and the base.
Result：The vibrations transmitted from the compressor to the base were successfully reduced.

Vibration acceleration power spectra of the base

Before installaton After installation

Selection guide

From the characteristic data graph, select the mount with the natural frequency of 1/2 or less of the vibration frequency you want to isolate or remove.

[Selection example]
If you want to isolate the vibrations from a pump running at 1,800 rpm with a load of 5 kg on each mount.

· The frequency of the vibrations produced by the pump is 1,800 rpm/60 seconds = 30 Hz.
· Therefore, a mount with a natural frequency of 30 Hz/2 = 15 Hz or less should be selected.
In this case, BBC25D013 (natural frequency of 13 Hz when under a load of 5 kg) and BBC35D007 (natural frequency of 11 Hz when under a load of 5 kg) are suitable.

Characteristic data

Precautions for use

● If the vibration frequency is √2times the natural frequency of the mount or less, the vibrations will be amplifi ed.
● Use the mounts inside the load tolerance range. Furthermore, install such that the load is in the vertical (compressive) direction.
● Mounts cannot be used under conditions of tensile or shear load (refer to the above examples). Furthermore, ensure that no tensile or shear load is applied during transportation and storage. Application of tensile or shear load may damage the mounts.

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